HomeSuspension > Suspension, Springs and Related ComponentsDelphi TC2903 Suspension Ball Joint - Front Right Lower
Part #: TC2903

Delphi TC2903 Suspension Ball Joint - Front Right Lower

Front Right Lower
5 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Lexus, IS300
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Delphi Suspension Ball Joint for Lexus IS300

The Delphi TC2903 suspension ball joint is engineered to provide reliable steering and suspension performance for your Lexus IS300. Constructed from durable steel with a black finish, this ball joint assembly is designed to meet standard suspension grade requirements and ensure a secure fit.

  • Material: High-strength steel construction
  • Maximum outside diameter: 2.047 inches (52.0 mm)
  • Stud thread diameter: 0.551 inches (14.0 mm)
  • Includes castle nut, cotter pin, and mounting hardware
  • Dust boot made from chloroprene rubber for protection against contaminants
  • Mounting type: Bolt on with 3 mounting holes spaced 88.0 mm apart
  • Dimensions: Width 75.1 mm, Height 108.9 mm (4.287 inches)
  • Non-greasable, standard suspension grade ball joint

Durable Design and Precise Fitment

The Delphi TC2903 suspension ball joint is specifically designed for the Lexus IS300, ensuring compatibility and proper fitment. The steel construction provides strength and durability, while the included dust boot made of chloroprene rubber helps protect the joint from dirt and moisture, extending its service life. This ball joint assembly comes complete with essential mounting hardware, including a castle nut and cotter pin, to secure the connection safely. The bolt-on mounting type with three mounting holes allows for straightforward installation without the need for additional modifications.

Common Applications and Problem Resolution

This suspension ball joint is used to connect the control arm to the steering knuckle, allowing for smooth pivoting and stable handling. It is suitable for addressing several suspension-related issues on the Lexus IS300, including:

  • Excessive play or looseness in the steering
  • Uneven tire wear caused by worn suspension components
  • Clunking or knocking noises during driving over bumps
  • Reduced steering responsiveness or alignment problems
  • Vibration or instability at higher speeds

Installation Notes and Tips

Installation of the Delphi TC2903 ball joint requires basic suspension knowledge and tools. Ensure the vehicle is securely lifted and supported before beginning. Remove the old ball joint carefully, noting the position of all hardware. The included castle nut and cotter pin must be installed to secure the stud properly. Since this ball joint is non-greasable, no additional lubrication is necessary during installation. Verify torque specifications according to Lexus IS300 service guidelines to ensure safe and proper fitment.

Quality Assurance and Warranty

Delphi suspension components are manufactured to meet or exceed OEM standards for quality and durability. The TC2903 ball joint undergoes rigorous testing to ensure reliable performance under normal driving conditions. This part includes a limited warranty against defects in material and workmanship, providing confidence in its long-term use on your Lexus IS300.

BrandDelphi
Part NumberTC2903
AdjustableNo
Ball Joint AssemblyYes
Bushings IncludedNo
Castle Nut IncludedYes
ColorBlack
Cotter Pin HoleYes
Cotter Pin IncludedYes
Distance Between Mounting Holes88.0
Dust Boot IncludedYes
Dust Boot MaterialCholoroprene Rubber (CR)
Grease Fitting IncludedNo
GreaseableNo
Height4.287
Height108.9
Item GradeStandard Replacement
MaterialSteel
Maximum Outside Diameter2.047
Maximum Outside Diameter52.0
Mount Plate IncludedNo
Mounting Hardware IncludedYes
Mounting Hole Quantity3
Mounting TypeBolt On
Nuts IncludedYes
Position(s)Front Right Lower
Stud Tapered End 1 Diameter0.622
Stud Tapered End 1 Diameter15.8
Stud Tapered End 2 Diameter0.709
Stud Tapered End 2 Diameter18.0
Stud Thread Diameter0.551
Stud Thread Diameter14.0
Stud Thread Length0.965
Stud Thread Length24.5
Stud Thread Pitch1.5
Stud TypeThreaded
Suspension Grade TypeStandard
Tapered StudYes
Washers IncludedNo
Width75.1

This part fits 5 vehicles. Search below:

YearMakeModelPositionNotes
2005LexusIS300Front Right Lower
2004LexusIS300Front Right Lower
2003LexusIS300Front Right Lower
2002LexusIS300Front Right Lower
2001LexusIS300Front Right Lower

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

101-543343330-5906543330-5906643330-59135BJ05004BJ64104JBJ7559K500067MS86511

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.